Air and vacuum motor.



O. W. JOHNSTON.

AIR' AND N AOUOM MOTOR.

APPLIGATIOH'TILED .TIL 23, 1904. l

BEEETS-,SHEET' R fR HAK k MN VY A TTONEV- No. 827,021. I PATENTED JULY 24, 1906.-

' G. W. JOHNSTON AIR AND VACUUM MOTOR.

' APPLICATION FILED JAN. 23, 1904.

3 SHEETS-SHEET 2.

PATENTND JULY 24, 1906.

G. W. JOHNSTON; AIR AND VACUUM MOTOR.

APPI'JIOATIO'N FILED 11111.23. 1904.

3 SHEETS-SHEET 3,

[n1/Umm: @1

A. Illllllllrv' used as occasion may require.

plipe connecting said emergency-tank with 'gh-pressure tanks G- G, and 1 is a reliefvalve. The device may be provided with one or more of these emergency-tanks, to be G, and valve f is open to the atmosphere.

'- -When going downgrade, the engine-throttle is closed, valve M is open ,to the atmosphere, and the engines act as pumps exhausting into vacuum-tanks D D. At such time it is immaterial as to whether there is a partial Q represents parts of the frame of the 'device, and Q the platform.

Y Y are rollers adapted to travel on the frame in suitable bearings and upon which latform Q oscillates horizontally as the veiiicle is started or stopped, the vehicle being thus assisted in utilizing all its forms of motion.

V V are clamps rigidly attached to the latform and -.flanged under the frame to aid in holding the platform in position. Being unattached to the frame, these clamps are adapted to a sliding longitudinal motion.

Any ordinary means may be provided for turning the wheels in and out of gear, and any suitable reversing-gear may be attached.

What I claim, and desire to secure by Letters Patent, is-

1. In a vehicle propelled by compressed air, the combination of a truckrame, the

hollow front axle and the wheels carried thereon and the air-pu1nps in said wheels ,having a rotary operating mechanism, the

duplicate transverse vacuum-tanks and their 'connecting-pipe, the duplicate high-pressure longitudina tan-ks across said vacuum-tanks, the pipes connecting the ends oi the vacuumtanks and said hollow axle andthe umps in` said wheels, ,thetransverse pipe an its pi` e connections 'with the front ends of the hig pressure tanks and said axle and their lever and controlling valves, the hollow rear axle, the wheels carried thereon and the engines in said rear wheels having a rotary operating lmechanism, the pipes connecting the ends of the rear vacuum-tank and said axle and engines andthe check-valves, the rear transverse pi e and its pipe connections with the rear' en s of said hi h-pressure tanks and said axle and their ever and controlling- 'valves and rod, the vertical automatic pumps and their pipes for taking air from said vacuf 11m-tanks and forcing the same into said highpressure tanks, the automatic relief-valve in the vacuum-tank, the horizontal automatic pump provided with piston and its connections for taking air from the vacuum-tanks The valvesf and forcing the same'into the lign ressure I tanks by means of said pistons, and t 1e emergency-tank and the pipe connectionwith a high-pressure tank and its circulating-valve, substantially as described and shown.

2. In a vehicle propelled by compressed air, the front hollow aXle and the wheels carried thereon and the pumps operating therein, the iront vacuum-tank for the storage of compressed air, the pipes through which said air is drawn from said tanks into said pumps, the high-pressure tanks and the ipes and valves connecting said pum s andp axle and said high-pressuretanks an through which the air ispforced into the high-pressure tanks, the rear axle and the wheels carried thereon and the engines operating in said wheels, the rear vacuum-tank, the-pipes and their valves forming connection between said 'rear axle and the rear ends of said high-pressure tanks and throughwhich air is drawn from said high-pressure tanks and forced into the vacuu'm-tanks, the ipe connecting the vacuumtanks and the evers, rods and valves, substantially as set YJforth and shown.

3. In a vehicle propelled by compressed air the rear truck-wheels having engines and the'ront truck-wheels havin pumps adapted to store energy and rovi ed with rotary o erating mechanism@ e hollow axle supon uihich Vsaid wheels are carried, the vacuum and high-pressure tanks, the rotary vertical pumps and their pipes for drawing air from said vacuum-tanks and orcino' it into the high-pressure tanks, the pipes liorming con.- nectionl between said vacuum-tanks and the engines in the rear Wheels, said high-pressure tanks and the said axles and valve-operating lever, the double-acting automatic pump provided with a piston and adapted to take air at one' end and compressed air at the other end and its pipe conpipes and valves connecting igh-pressure tanks and the IOC nections with the vacuum and highressure tanks substantially as set forth and s own.

4, In an air and vacuum motor the combination of the vacuum-tanks, the high-pressure tanks set longitudinaliy at right angles with and above the vacuum-tanks, the lonffitudinal automatic pum between said hig i4 pressure tanks proyide with a piston, the

emergency-tank andthe connecting mechan rotary operating mechanisms and the pipes extending from the ends of the vacuum-tanks tothe ends'of the axles to sup ly air to the pumps and engines, of the igh-pressure' tanks set longitudinally With the motor, the

front and rear transverse pipes, the pipes connecting the transverse ipes with the front and rear axles, the two Fever-valves operated by a single rod, the pipes'oonneeted at right angles eaeh at one end with an end of a transverse pipe and each at the other end opening into an end of a high-pressure tank, andv the controlling-valves insaid pipes, substantially as described and shown.

6. The combination with the frame, axles and Wheels provided with pumps and engines therein, the Vacuum andhigh-pressure tanks and the connecting-pipes and valves and 1e- Vers in an air and Vacuum motor, ofthe vertical automatic pumps at the corners of the motor, the pipe extending from eaeli of said pumps to a oonnec-tiori 4With a Vacuum-tank through which air maybe Withdrawn by said ump from said tank, and the pipe extending From each ofsaid pumps to a Connection With a high-pressure tank through which said air may be forced by said puinp into said high pressure tank, substantially as set forth and shown.

In testimony whereof I affix my signature in presence of two Witnesses.

GEORGE W. JOHNSTGN.

, Witnesses:

.OTTO G. SCHULZ, REBA DAVIEs. 

